GLASS-LINED INSTRUMENTATION LIQUID ANALYSIS FOR HIGHEST STANDARDS ANALYTICAL DATA ION SENSITIVE < VALUE 2.

Transcription

1 GLASS-LINED INSTRUMENTATION LIQUID ANALYSIS FOR HIGHEST STANDARDS ION SENSITIVE VALUE 2.0 < ANALYTICAL DATA

2 Pfaudler Group One single source responsibility with access to all Pfaudler Technologies, Solutions, Services wldwide Technologies We help make the wld around us. Much of what you see, taste and touch in the wld was created improved using Pfaudler Technologies Services We provide 24/7 suppt f your entire plant Solutions We design and build turn-key process Since 1884, Pfaudler has grown to be a truly global, multinational and diverse company with approximately 1,400 employees and manufacturing facilities in nine countries on four continents, encompassing the Pfaudler, Montz, Edlon, GMM Pfaudler and Mavag brands. Pfaudler Technologies and Solutions can be found around the globe. They are installed in me than 100 countries and across six continents. Chemical and pharmaceutical companies around the wld rely on the quality, durability and perfmance of our Technologies to ensure their chemical process systems are efficient, reliable, profitable and safe. of the results of our advanced thinking throughout all areas of typical chemical and pharmaceutical plants because our ptfolio of technologies covers all chemical unit operations. Years of experience and highly qualified services are the basis f innovative and economic solutions f your requirements in the area of process equipment and systems. Innovation Our innovative spirit continuously drives us to develop the next great technology The name Pfaudler has become synonymous with chemical processing and crosion resistance. You will find examples 2 3

3 Technology and Benefits Advantages of the glass-lined measurement technology Technology Glass lining is a unique composite material that optimally combines the advantages of steel and glass. As a result, it not only offers outstanding protection against many aggressive media, but it is also abrasion-, pressure- and temperature-resistant. This makes glass lining the perfect material f protecting measurement technology in demanding applications. But glass lining can do even me. Specially developed fmulations react to H+ ions in liquid media, which makes them suitable f ph measurement. VALUE ION SENSITIVE 2.0 < ANALYTICAL DATA TOP LAYER GROUND LAYER Embedding senss in the glass lining not only delivers redox potential and conductivity measurements but also ultra-fast reacting temperature measurements and crosion moniting. STEEL Benefits Highly resistant glass layer Resistant to aggressive acids, ganic solvents and proteins Resistant to Cleaning In Place (CIP) and Sterilisation In Place (SIP) processes Resistant to abrasion Resistant to high temperatures Resistant to thermal shocks No catalytic biological effects Self-cleaning Prevents deposit fmation with adequate flow velocity Suitable f adhesive products Durable Service life limited only by glass crosion abrasion Robust steel body Withstands turbulences, shear fces and high process pressures Allows continuous inline moniting No need f bypass lines, pumps, shutoff devices retractable holders Low maintenance No change in the ph characteristic curve over the entire service life Lower costs f recalibrations and cleaning processes Positive pressure effectively prevents diaphragm and electrolyte section contamination Maintenance intervals of up to one year Can be sted dry 4 5

4 Glass-lined ph Probes Long-lasting and low-maintenance MEASUREMENT The ph value is one of the most imptant and commonly measured values in many fields of process engineering. The stability of the entire production process can be increased by regulating the ph value in a targeted way. Thanks to their maintenance-free operation and long service lives, robust glass lined ph probes are a cost-effective option f constant use. Steel probe body The glass lined ph probe comprises a steel probe body with a highly-resistant, anti-adhesive technical glass lining to protect the surface in contact with the product. This makes the probe resistant to mechanical strain by flows, pressure, abrasion and vibrations. Probes can therefe be installed in piping and vessels where they are directly exposed to the flow, enabling direct continuous online measurement in the main product stream. Meover, the smooth surface the glass lining gives the probe protects it against crosion and product build-up. Combined with a pressurised electrolyte system, these properties allow the probe to be installed in any position and direction, so the ph sens can be installed directly at the point of use. No aging Unlike in glass electrodes, there is no internal buffer (discharge electrode). In contrast to conventional glass electrodes, the ion-sensitive glass area is only in contact with the process medium on one side. This prevents ageing and drift of the ph sens. - The operating life of a Pfaudler ph probe is depending of chemical crosion and abrasion (diagram crosion resistance). Structure of ph-glass-lining H + potential dissipation Steel Metal-contact zone Transition of ions to electron conduction Ag + Silver ion Sodium ion Proton Hydroxonium Pfaudler-Glass Ag + Ag + Ag + ph-glass-lining Ag+ Ag + H + Na+ H + H + H + ph-glass-mainzone ph-glass-transition zone Alkali ion concentration gradient Aqueous solution H 3 O + Natronlauge Outer leaching layer (Depletion of alkali ions by hydration) Crosion resistance of the Pfaudler ph-glass Characteristic curve of ph measurement Permantent exposition over one year - Increase expotentially to temperature 120 Temperature C resistance Abtrag 0,4 mm 0,2 mm 0,1 mm Hydrochlid acid sodium hydroxide ph value 6 7

5 Glass-lined ph Probes F highest heavy-duty process standards HEAVY DUTY MEASUREMENT Absolute ph-measurement principal ph determination is a potentiometric (electrochemical) analysis method. A typical measuring setup with absolute ph probes comprises two electrodes a measuring electrode immersed in a process medium and a reference electrode immersed in an electrolyte liquid. The measuring electrode generates a potential that clearly identifies the chemical condition (hydrogen ion concentration) of the medium to be measured. The reference electrode provides a constant known potential that is independent of the composition of the process medium. A transmitter connected to the ph measuring probe calculates the medium s ph value from the difference in potential between the two electrodes, depending on the measured temperature - The ph value is now an absolute ph value. Relative ph-measurement principal Differential ph probes provide values measured against a product-dependent reference parameter. The measured value is therefe a product-specific value (relative ph measurement) that allows a statement as to whether a process is perfmed accding to defined specifications. This measured value is therefe ideal f controlling and moniting recurring batch processes (e. g. fmulations without changes) continuous measurement. Differential ph probes are simple in structure: two ion-sensitive enamels are fused onto a steel probe carrier and fm the measuring part of the sens. One sens surface responds to H+ ions and provides a potential that depends only on the ph value; this is called the ph glass. The other sens surface the reference glass reference electrode responds to the salts dissolved in the liquid, especially the Na+ ions resent, and thus provides a product-specific reference potential. Once the transmitter has been configured with data from the measurement and test rept provided, the ph differential probe is calibrated in its installed position using a product sample. The probe then wks like a nmal absolute ph measurement device in the specified range. The special relative measurement principle means that the probe functions without an electrolytic liquid. This eliminates the risk of the product being contaminated by the electrolyte and ensures practically maintenance- free operation. ROD -PROBE TYPE 03 N ROD -PROBE TYPE 03 K RING -PROBE TYPE 03 N -PROBE TYPE 18 ROD -PROBE TYPE 40 RING -PROBE TYPE

6 Glass-lined ph Probes F highest hygenic process standards HYGENIC DESIGN MEASUREMENT In food production, the ph value is an imptant indicat of consistent quality, taste and reproducibility in a product, and a significant variable during and after cleaning of the production facilities. The compact probe named ph-reiner was consistently matched to the needs of the foodstuffs, pharmaceutical and biotech industries. The measuring electrode with a large surface area consists of ph-sensitive glass that is fused on to the lower end of the glassed probe carrier in an annular shape. The area of the measuring electrode is a multiple of that of glass electrodes. Therefe, precision measurements of the ph value can even be carried out in those media in which measurement ceased to be possible using other methods. In contrast to conventional glass electrodes, the ph glass is in contact with the fluid on one side only. Aging of the probe measured value drifts are not possible with this probe. The reference electrode necessary f the ph measuring chain is integrated in the probe head. The electrolyte connection between the reference electrode and the product is made using a tube and a shrunk, aseptic ground diaphragm. The electrolyte is contained in a PE bottle that is placed in a stainless steel pressure vessel and the electrolyte bottle can be replaced without affecting sterile conditions. A special, sterile Pfaudler electrolyte is used as a standard. If necessary, infusion solutions such as a sterile saline solution, may also be used as electrolyte. The electrolyte system is pressurized, therefe, the pressure inside the electrolyte system is always higher than the operating pressure inside the react piping. Therefe, no product can enter the probe contaminate the diaphragm. The ph Reiner probe can be cleaned and sterilized in-line (up to 134 C) without losing its characteristics. -PROBE TYPE -REINER ELECTROLYTE VESSEL STAINLESS STEEL Easy to clean Reconditioning the ph Reiner probe after cleaning with alkali Regeneration time (min) After 30min CIP using 2% NaOH at 85 C ph 0,1 0 0,1 0,2 135 C steam 95 C water 80 C water 25 C water 0,3 0,4 0, min 10 11

7 Glass-lined Probes F highest process standards ORP REDOX POTENTIAL MEASUREMENT Redox potential measurement Several variants of our probes are designed f measuring redox potential. Like other Pfaudler measuring probes, these are robust and resistant to attack. Their function is to measure the redox potential arising in oxidation reduction processes. This measurement is carried out with a noble metal electrode against a reference electrode. There are two different versions to choose from:high-impedance measuring transmitter. The redox potential is measured between a rhodium electrode embedded in the enamel and a ph enamel reference electrode. The magnitude of the potential occurring at the reference electrode depends on the ph value of the product. Thus, a redox voltage is obtained which is not dependent on the ph value. The rh measuring probe is chemically highly resistant: the measuring electrode is made of rhodium, the reference electrode of ph enamel. The combined measuring probe ph/rh The combination of both measuring systems on one carrying tube makes possible the simultaneous measurement of ph value and redox potential. The technical data f this combined measuring probe are as f the ph measuring probe type 03 type 04 and rh type B. Conductivity measurement In the LF measuring probe, four metal (rhodium) electrodes are aligned longitudinally and fused into the enamel coating of the probe carrier. Thermometer tubes, baffles spacer rings may be used as probe carriers. The cell constant is dependent on the geometry and location of the probe and cannot be predetermined. F this reason, a fourwire circuit is used. A constant alternating current flows across the two outer electrodes and through the product. The resultant voltage drop is sensed by the two inner electrodes and transmitted to a high-impedance measuring transmitter. LF CONDUCTIVITY MEASUREMENT ROD PROBE TYPE RH ROD PROBE TYPE /ORP RING PROBE TYPE /ORP ROD PROBE TYPE LF RING PROBE TYPE LF 12 13

8 Technical Data Product overview ION SENSITIVE VALUE 2.0 < ANALYTICAL DATA Type ph 03 N/K/Ring ph 03 N/Dual ph Reiner ph 40/pH 40 Ring ph 18 ph/orp rh LF/LF Ring Measured value Absolute ph Absolute ph (2x) Absolute ph Relative ph Relative ph Absolute ph and Redox potential Redox potential Conductivity Reference system Diaphragm + reference electrode Diaphragm + reference electrode Ground-joint diaphragm (ceramics), reference electrode AgAgCl Reference enamel Reference enamel Diaphragm + reference electrode Reference enamel Measuring range 0 to 10 ph 0 to 10 ph Linear range 0 to +10* ph / application range -2 to +14** ph 3 to 12 p to 12 ph to mv 0 to 10 ph to mv 0.01 to 2000 ms/cm Operating temp. 0 to +140 C 0 to +140 C 0 to +140 C 0 to +140 C 0 to +140 C 0 to +140 C 0 to +140 C -25 to +200 C Temperature compensation Pt 100 Pt 100 Pt 1000 Pt 100 Pt 100 (optional) Pt 1000 Pt 100 Pt 100 (optional) Pt 100 Operating pressure -1 to +9 bar -1 to +9 bar -1 bis +6 bar -1 to +40* bar -1 to +15 bar -1 to +9 bar -1 to +40* bar -1 to +40* bar Ex. protection Dimensions (mm) Ring-probe: DN 50 / DN 80 L = 120 / D = 12.5 Ring-probe: DN 50 / DN 80 L = 144 D = 31 Ring-probe: DN 50 / DN 80 Electrical connection 5-pin, Lemo 5-pin, Lemo 6-pin gold-plated, interconnex Variopin 5-pin, Lemo 5-pin, Lemo 6-pin gold-plated, interconnex Variopin 5-pin, Lemo 5-pin, Lemo Degree of protection IP66 to IP68 IP66 to IP68 IP68 IP66 to IP68 IP66 to IP68 IP68 IP66 to IP68 IP66 to IP68 Electrolyte Special Pfaudler KCL solution Special Pfaudler KCL solution Special sterile Pfaudler KCL solution No KCL solution is needed No KCL solution is needed Special Pfaudler KCL solution No KCL solution is needed No KCL solution is needed 14 15

9 Features and Benefits Product overview Features ph 03, ph 03 Dual, ph Ring ph 40, ph 18 ph Reiner rh, ph /ORP LF, LF Ring Mechanical robust, abrasion-resistant, chemically resistant Extremely high pressure ranges possible Suitable f high temperatures Self-cleaning CIP- / SIP-compliant Slope is maintained throughout service life Positive pressure effectively prevents diaphragm clogging and contamination No reference electrode poisoning possible Glass-lined sodium ion sensitive reference electrode without diaphragm and electrolyte line Stainless steel pressure vessel Electrolyte in sterile bottle with septum EHEDG cerification Certified f explosion zone 0 Benefits Permanent inline moniting in applications with high mechanical and chemical stress No retractable holder / bypass installation required Low life-cycle costs due to minimal maintenance expense Service life limited only by glass crosion and / abrasion No electrolyte contamination of the product No need f consumables Permanent inline moniting in hygienic applications Combined ph / ORP measurement possible No catalytic biological effects Can be sted dry 16 17

10 Global Services Capability Pfaudler Safety First Delivering excellent safety perfmance is necessary f any company operating in the process industries. Over the years, and all over the wld, Pfaudler has provided security in its products and highly-qualified service teams. Pfaudler guarantees a global service during the whole process, pre and post sales, with the largest service ganization in different sects. Our Service Centers are close to your site to guarantee fast and flexible services. Me than 150 people are at your service. We are present in several countries with field engineers who can provide you with comprehensive suppt f installation, commissioning and maintenance of your facilities and plants. Our Services From comprehensive engineering and technical services to our rapid, reliable field services and aftermarket parts supply, you can count on us to keep your process system operating properly: Engineering Consultancy Services Pilot testing / toll operation Process engineering Installation, Commissioning, Start up Planning Project management Installations Lining measurement technologies We are committed to safety and our field service ganization that provides installation and maintenance f your facility, has developed strict safety policies to ensure a safe wking environment. Pfaudler guarantees: skilled professionals properly prepared and qualified on security and risk management observance of international standards use of professional personal protective equipment reduced operating risks Refurbishing, reglassing and inspection In addition to its expertise in manufacturing and market products and engineered solutions, Pfaudler has ce expertise in the service area of full equipment refurbishing. The reacts are completely reglassed, refurbished combined with a suitable retrofitting of all devices accessies, producing an appropriate program to meet specific customer needs and timeframes. All this is in compliance with international and European standards. Our technicians provide a complete glass lining inspection program to ensure that your react is in proper condition f safe and efficient operation. PROJECT MANAGEMENT EXTENSIVE FIELD SERVICE NETWORK Maintenance and aftersales Maintenance & repair Troubleshooting Glass inspection, reglassing and repair Shutdown services Spare / Replacement parts Mechanical seal exchange Our commitment to quality components means that our technologies are often in service f many years. However, our pioneering approach means that during this time we have developed new solutions. Whether your process is changing you are looking to further optimise perfmance levels, an upgrade to our new technologies can improve the capabilities of your react

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